JPS57150497A - Treatment of water - Google Patents
Treatment of waterInfo
- Publication number
- JPS57150497A JPS57150497A JP3477081A JP3477081A JPS57150497A JP S57150497 A JPS57150497 A JP S57150497A JP 3477081 A JP3477081 A JP 3477081A JP 3477081 A JP3477081 A JP 3477081A JP S57150497 A JPS57150497 A JP S57150497A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- water
- supplied
- activated sludge
- supply line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To improve denitrification rate with simple installations by circulating the water to be treated in a reaction tank to nitrate the same with aerobic activated sludge then subjecting the same to an aeration treatment to reduce BOD followed by sepn, of the activated sludge.
CONSTITUTION: The crude night soil from a storage tank 1 is supplied to a reaction tank 3, where gaseous oxygen is supplied thereto through a flow passage 4, and the crude night soil is circulated and fluidized by a pump flow passage 5 so that the BOD is reduced and ammoniacal nitrogen contents are nitrated by the effect of aerobic activated sludge. The treated water from the tank 3 is supplied to a preaeration tank 6 where it is blown with an oxygen-contg. gas through an air supply line 7, after which it is supplied to an aeration tank 8. In the tank 8, diluting water from a water supply line 9 is added thereto and an oxygen-contg. gas is blown through an air supply line 10 so that the BOD of the water to be treated is reduced by the aerobic activated sludge.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3477081A JPS57150497A (en) | 1981-03-10 | 1981-03-10 | Treatment of water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3477081A JPS57150497A (en) | 1981-03-10 | 1981-03-10 | Treatment of water |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57150497A true JPS57150497A (en) | 1982-09-17 |
Family
ID=12423536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3477081A Pending JPS57150497A (en) | 1981-03-10 | 1981-03-10 | Treatment of water |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57150497A (en) |
-
1981
- 1981-03-10 JP JP3477081A patent/JPS57150497A/en active Pending
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